Temping Vaginally

I have heard that temping vaginally is more accurate than temping orally. Should I try it?

Most people are able to see their ovulation pattern clearly enough while temping
orally. When temperatures are very rocky and ovulation cannot be detected, it
is usually due to poor temperature-taking habits (especially not taking the
temperature at the same time). If you are certain that you are taking your temperature
accurately and you are still getting a great deal of fluctuation, you may find
it helpful to take your temperature vaginally. If you plan to take your temperature
vaginally, wait for a new cycle to start. Do not change from oral to vaginal
readings within the same cycle as this will disrupt your interpretation since
vaginal temps are typically higher than oral temperatures. To take your temperature
vaginally, just insert the tip of the thermometer into your vagina in the morning
and record your temperature as usual.